Use 91 Leo for Leap year in 1950 era or Leap+3 in 2000 era.

Name: 91Upsilon LEO
Birthday from Jack’s initial research: September 16
Magnitude: 4.3
Spectrum/Star type: Dark yellow Giant
Distance in Light Years: 180
Diameter compared to Sun: ~14
Luminosity compared to Sun: ~50
Date best observed: Apr 30
Additional information: Nearby and just beyond the Zodiac is 21 Theta in the constellation Crater, same date, Blue, 305 light years, 4.7 magnitude.